This article was originally published on AI Study Room . For the full version with working code examples and related articles, visit the original post. API Documentation API Documentation API Documentation API Documentation API Documentation API documentation is the primary interface between API providers and consumers. Good documentation makes APIs easy to understand, integrate, and maintain. Bad documentation leads to integration errors, support burden, and frustrated developers. This article covers OpenAPI specification, documentation tools, and best practices for creating effective API documentation. OpenAPI Specification The OpenAPI Specification (formerly Swagger Specification) is the industry standard for describing REST APIs. It provides a machine-readable format (JSON or YAML) that describes every aspect of an API: endpoints, request parameters, request bodies, response schemas, authentication, and error codes. An OpenAPI document serves multiple purposes.…